Fokker-Planck Model for Thermal Smoothing in Inhomogeneous Laser-Matter Interactions
Abstract
Using a fully kinetic 2D Fokker-Planck model, the generation and evolution of ion density perturbations from nonuniform laser deposition in a plasma slab have been studied. It is found that significant smoothing of the ion density perturbations from nonuniform optically smoothed single beam laser deposition can be achieved on hydrodynamic time scales over a long range of scale sizes. In addition, it is observed that the Fokker-Planck model predicts more smoothing than the hydrodynamic Spitzer model.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 24, 2009
- Accession Number
- ADA503093
Entities
People
- Michael J. Keskinen
Organizations
- United States Naval Research Laboratory